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采用海水浸泡-阳光暴晒循环老化的方法来模拟海洋环境中复合材料的实际工作环境,分别评价手糊和真空成型两种玻璃纤维复合材料在海洋环境中的耐久性.通过对老化前后复合材料的质量变化、轴向拉伸强度和面内剪切强度的分析,研究玻璃纤维增强复合材料的老化规律.结果表明:经过湖北武汉和海南三亚70d的自然循环老化,增质量率随时间的增加而增加,干燥试件强度大于湿态试件剩余强度,武汉试件老化剩余强度大于三亚试件剩余强度,手糊和真空成型2种工艺的玻璃纤维增强复合材料表现出不同的老化规律和失效类型.
The seawater immersion-sunshine exposure cycle aging method was used to simulate the actual working environment of composite materials in the marine environment, respectively, to evaluate the durability of hand lay-up and vacuum forming two kinds of glass fiber composites in the marine environment.After aging the composites The results show that after 70 days of natural circulation aging in Wuhan and Hainan Sanya in Hubei Province, the increment of mass rate increases with the increase of time, and the aging rate of glass fiber reinforced composites Glass fiber reinforced composites with two kinds of processes of increasing and drying the specimen strength greater than the residual strength of the wet specimen, aging residual strength of the Wuhan specimen greater than the remaining strength of the Sanya specimen, hand lay-up and vacuum forming showed different aging rules and failure types .